National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

33°F

1°C

Humidity 48%
Wind Speed SE 8 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 27 Feb 11:54 am EST
Extended Forecast for

Watertown MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 40. Calm wind becoming south around 5 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 24. South wind around 6 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. South wind 6 to 9 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29. Southwest wind around 5 mph becoming light and variable in the evening.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of snow, mainly after 7am. Mostly cloudy, with a high near 36. Northwest wind 5 to 8 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A slight chance of snow before 9pm. Mostly clear, with a low around 11. Northwest wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 11 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 25. Northwest wind around 6 mph.

    High: 25 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. Light west wind.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 36. South wind 5 to 8 mph.

    High: 36 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 40. Calm wind becoming south around 5 mph.
Tonight
Mostly clear, with a low around 24. South wind around 6 mph.
Saturday
Sunny, with a high near 51. South wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 29. Southwest wind around 5 mph becoming light and variable in the evening.
Sunday
A chance of snow, mainly after 7am. Mostly cloudy, with a high near 36. Northwest wind 5 to 8 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday Night
A slight chance of snow before 9pm. Mostly clear, with a low around 11. Northwest wind 6 to 8 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 25. Northwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 13. Light west wind.
Tuesday
Partly sunny, with a high near 36. South wind 5 to 8 mph.
Tuesday Night
Rain likely, possibly mixed with snow, becoming all rain after 4am. Mostly cloudy, with a low around 29. South wind around 6 mph becoming west after midnight. Chance of precipitation is 60%.
Wednesday
A chance of rain. Mostly sunny, with a high near 45. West wind 6 to 8 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 31. Southwest wind around 5 mph.
Thursday
A chance of rain. Cloudy, with a high near 46. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
7:42 am EST Feb 27, 2026
Forecast Valid:
12pm EST Feb 27, 2026-6pm EST Mar 5, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation